Description

The Human miRNA Tissue Atlas is a
catalog of tissue-specific microRNA (miRNA) expression across 62 tissues. This track contains
quantile normalized miRNA expression data sampled from two individuals and mapped to
miRBase v21 coordinates. The track contains two subtracks, one
for each individual sampled.

The Tissue Specificity Index (TSI) is analogous to the "tau" value for mRNA expression,
and is calculated as described in the
associated publication. Values closer to 0 indicate miRNAs expressed in many or all tissues,
while values closer to 1 indicate miRNAs expressed only in a specific tissue or tissues. To
browse miRNAs by TSI value, please see the
miRNA Tissue Atlas.

Display Conventions and Configuration

This track is formatted as a barChart track,
similar to the GTEx or the
TCGA Cancer Expression tracks, where the
heights of each bar indicate the expression value for the miRNA in a specific tissue. The tissues
sampled are described in the table below:

Bar Color

Sample 1

Sample 2

Adipocyte

Adipocyte

Artery

Artery

Colon

Colon

Dura mater

Dura mater

Kidney

Kidney

Liver

Liver

Lung

Lung

Muscle

Muscle

Myocardium

Myocardium

Skin

Skin

Spleen

Spleen

Stomach

Stomach

Testis

Testis

Thyroid

Thyroid

Small intestine

Bone

Gallbladder

Fascia

Bladder

Epididymis

Tunica albuginea

Nervus intercostalis

Arachnoid mater

Brain

Small intestine duodenum

Small intestine jejunum

Pancreas

Kidney glandula suprarenalis

Kidney cortex renalis

Esophagus

Prostate

Bone marrow

Vein

Lymph node

Nerve not specified

Pleura

Pituitary gland

Spinal cord

Thalamus

Brain white matter

Nucleus caudatus

Kidney medulla renalis

Brain gray_matter

Cerebral cortex temporal

Cerebral cortex frontal

Cerebral cortex occipital

Cerebellum

The 14 shared tissues sampled across both individuals are presented in the same order for easier comparison.

Data Access

The underlying expression matrix and TSI values can be obtained from the
miRNA tissue atlas website, in the
data_matrix_quantile.txt and tsi_quantile.csv files.